Added ReplacePathRegex middleware

server/rules.go

@@ -92,6 +92,13 @@ func (r *Rules) replacePath(paths ...string) *mux.Route {
 	return r.route.route
 }
 
+func (r *Rules) replacePathRegex(paths ...string) *mux.Route {
+	for _, path := range paths {
+		r.route.replacePathRegex = path
+	}
+	return r.route.route
+}
+
 func (r *Rules) addPrefix(paths ...string) *mux.Route {
 	for _, path := range paths {
 		r.route.addPrefix = path
@@ -155,6 +162,7 @@ func (r *Rules) parseRules(expression string, onRule func(functionName string, f
 		"HeadersRegexp":        r.headersRegexp,
 		"AddPrefix":            r.addPrefix,
 		"ReplacePath":          r.replacePath,
+		"ReplacePathRegex":     r.replacePathRegex,
 		"Query":                r.query,
 	}
 

server/server.go

@@ -16,6 +16,7 @@ import (
 	"reflect"
 	"regexp"
 	"sort"
+	"strings"
 	"sync"
 	"time"
 
@@ -81,6 +82,7 @@ type serverRoute struct {
 	stripPrefixesRegex []string
 	addPrefix          string
 	replacePath        string
+	replacePathRegex   string
 }
 
 // NewServer returns an initialized Server.
@@ -1065,6 +1067,15 @@ func (server *Server) wireFrontendBackend(serverRoute *serverRoute, handler http
 		}
 	}
 
+	if len(serverRoute.replacePathRegex) > 0 {
+		sp := strings.Split(serverRoute.replacePathRegex, " ")
+		if len(sp) == 2 {
+			handler = middlewares.NewReplacePathRegexHandler(sp[0], sp[1], handler)
+		} else {
+			log.Warnf("Invalid syntax for ReplacePathRegex: %s. Separate the regular expression and the replacement by a space.", serverRoute.replacePathRegex)
+		}
+	}
+
 	// add prefix - This needs to always be right before ReplacePath on the chain (second in order in this function)
 	// -- Adding Path Prefix should happen after all *Strip Matcher+Modifiers ran, but before Replace (in case it's configured)
 	if len(serverRoute.addPrefix) > 0 {